Shadow's FM build seems to have a super aggressive opening. I'm wondering if it is viable to do something different, like spend the first 3 turns shrouding yourself with defenses and protection and THEN switching to offense. Maybe something like:
Turn 1: Force Ring, Defense Ring
Turn 2: Psi-Orb, Forcefield (face down)
Turn 3: Cobra Defenses, Dancing Scimitar, (flip up Forcefield)
At this point, you have Forcefield and 3 Defenses up. Then you start bringing out the goods: Galvitar, Mage Wand (+BF), Hands of Bim-Shalla, Bear Strength, Gauntlets of Strength. While you are gearing up, you can use positional spells to keep the opponent at bay. After that you could either buff up your defense with things like stormdrake hide, dragonscale hauberk, regrowth belt, force orb/force sword.... OR you could go all out with the Battle Fury + Galvitar / Force Pull + Galvitar combos.